Geissele Automatics Geissele Super Duty 5.56 NATO 11.5" 1:7" CHF Bbl DDC Stripped Upper Receiver w/10.5" M-LOK MK16 SMR 08-245S

Upgrade your AR-15 build with the Geissele Automatics Super Duty AR-15 Barreled Upper Receiver in 5.56 NATO Carbine configuration. This premium 11.5-inch barreled upper delivers unmatched reliability and precision for demanding tactical applications, whether you're a competitive shooter, home defender, or professional operator. Crafted with Geissele's renowned engineering excellence, it combines a cold hammer-forged barrel with a Desert Dirt Color (DDC) finish for superior corrosion resistance and a battle-ready aesthetic that blends seamlessly into arid environments.Key Features Cold Hammer-Forged Barrel: The 11.5-inch medium-profile barrel is made from high-quality 4150 CMV steel, chrome-lined for enhanced durability and heat dissipation during extended firing sessions. Advanced Gas System: Carbine-length gas system optimized for reliable cycling with 5.56 NATO ammunition, reducing felt recoil and improving overall control. Precision Twist Rate: 1:7 rifling ensures stable accuracy with a wide range of bullet weights, from 55-grain FMJ to heavier match loads. DDC Cerakote Finish: Desert Dirt Color provides excellent scratch and wear resistance, while maintaining a low-profile, non-reflective surface for tactical stealth. Modular Design: Compatible with standard AR-15 Mil-Spec lowers, allowing easy integration into your existing setup without modifications.Technical Specifications Barrel Length: 11.5 inches Barrel Finish: Manganese Phosphate with chrome lining Barrel Profile: Medium contour for balanced weight and heat management Gas System: Carbine Twist Rate: 1:7 RH Cartridge Compatibility: 5.56 NATO / .223 Remington Muzzle Device: None included - customize with your preferred suppressor or brake BCG and Charging Handle: Not included, giving you freedom to select components that match your build Weight: Approximately 56.96 oz (3.56 lbs) for lightweight maneuverability Overall Dimensions: Length: 15 inches, Width/Height: 3.5 inchesWhy Choose the Geissele Super Duty Upper?This barreled upper addresses common AR-15 pain points like inconsistent cycling and premature wear by incorporating Geissele's battle-tested Super Duty platform. Users praise its flawless performance in high-round-count scenarios, making it ideal for those seeking a drop-in solution that enhances accuracy and longevity without the hassle of piecemeal assembly. The absence of a muzzle device and BCG allows for personalized customization, solving the frustration of mismatched components in off-the-shelf uppers. Built to withstand extreme conditions, it's the reliable choice for shooters who demand precision engineering over budget compromises.Elevate your AR-15 to professional-grade performance today. With the Geissele Super Duty 11.5-inch Barreled Upper, you're investing in a component that delivers consistent results session after session. Ready to complete your build? Secure yours now and experience the difference quality makes.Frequently Asked Questions1. Is this upper compatible with my existing AR-15 lower?Yes, it features a standard Mil-Spec upper receiver, ensuring seamless compatibility with most AR-15 lowers.2. What ammunition works best with this 11.5-inch barrel?Optimized for 5.56 NATO, it performs reliably with bullet weights from 55 to 77 grains, though testing your specific load is recommended.3. Does it come with a rail system?This is a barreled upper receiver group; it includes the barrel, receiver, and handguard, but no BCG or charging handle for full customization flexibility.